President Donald Trump has thrust the military into a central role in deterring illegal crossings into the U.S. at its southern border.

U.S. Army Sgt. Salvador Hernandez stands beside Stryker combat vehicles while watching over the U.S.-Mexico border fence from ...

There are now more than 10,000 military troops, including active‑duty soldiers and Marines and National Guard forces, stationed along the southern border.

US military expands enforcement zone to 1/3 of southern border The military is expanding its authority and reach along swaths of the southern U.S. border where troops have been empowered to detain ...

Annexed militarized zones on public land will soon cover nearly one-third of the U.S. border with Mexico, empowering soldiers to arrest people who cross the border illegally and facilitating new ...

Annexed militarized zones will soon cover nearly one-third of the US border with Mexico, empowering soldiers to arrest people who cross the border illegally.

Trump's declaration of a national emergency at the border has allowed the Army to sidestep a law prohibiting the military from civilian law enforcement.